<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>flex容器项目属性</title>
    <script>
        (function() {
            var nowWidth = document.documentElement.clientWidth;
            var thisWindowWidth = nowWidth > 750 ? 750 : nowWidth;
            document.documentElement.style.fontSize = thisWindowWidth / 750 * 625 + '%';
        })();
    </script>
    <style>
        .wrappers {
            display: flex;
            font-size: .28rem;
        }
        
        .item {
            /* flex-grow: 1; */
            /* flex-shrink: 2; */
            flex: none;
        }
    </style>
</head>

<body>
    <div class="wrappers">
        <div class="item">123</div>
        <div class="item">456</div>
        <div class="item">789</div>
    </div>

    <script src="../js/jquery.min.js"></script>
</body>

</html>